depends on you play style.

I would go with spell damage mundus (apprentice) given that setup since the bulk of your gear is focused on spell damage. That's what makes the most sense to me. Esp since your monster set is giving you potentially 1000 spell damage added to your attack. Overdo that one as much as possible. Otherwise go with spell penetration (lover) . leave crit rate (thief) and crit damage (shadow) mundus be.




Vicious Death

LEVEL 50 CHAMPION 160

(2 items) Adds 129 Spell Damage
(3 Items) Adds 1096 Maximum Magicka
(4 Items) Adds 833 Spell Critical
(5 items) When you kill a player they violently explode for 19452 Flame Damage to all other enemies in a 4 meter radius.



Spinner's Garments

2 items: Adds 12-1096 Maximum Magicka
3 items: Adds 12-1096 Maximum Magicka
4 items: Adds 1-129 Spell Damage
5 items: Adds 40-3450 Spell Penetration



Balorgh
LEVEL 50 - CP 160
Type Monster Set
Set bonus
(1 item) Adds 129 Weapon Damage, Adds 129 Spell Damage
(2 items) When you use an Ultimate ability, you gain Weapon Damage and Spell Damage for 10 seconds equal to twice the amount of total Ultimate consumed.

Lover